小数混合运算练习题 都要简便 40道

1.120-36×4÷18+35
2.（58+37）÷（64-9×5）
3.(6.8-6.8×0.55)÷8.5
4.0.12× 4.8÷0.12×4.8
5.（3.2×1.5+2.5）÷1.6 （2）3.2×（1.5+2.5）÷1.6
6.6-1.6÷4= 5.38+7.85-5.37=
7.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
8.6.5×（4.8-1.2×4）= 0.68×1.9+0.32×1.9
9.10.15-10.75×0.4-5.7
10.5.8×（3.87-0.13）+4.2×3.74
11.32.52-（6+9.728÷3.2）×2.5
12.6 ×（ 1/2 + 2/3 ）
13.8 × 4/5 + 8 × 11/5
14.31 × 5/6 – 5/6
15.9/7 - （ 2/7 – 10/21 ）
16.5/9 × 18 – 14 × 2/7
17.4/5 × 25/16 + 2/3 × 3/4
18.14 × 8/7 – 5/6 × 12/15
19.17/32 – 3/4 × 9/24
20.3 × 2/9 + 1/3
21.5/7 × 3/25 + 3/7
22.3/14 ×× 2/3 + 1/6
23.1/5 × 2/3 + 5/6
24.9/22 + 1/11 ÷ 1/2
25.5/3 × 11/5 + 4/3
26.45 × 2/3 + 1/3 × 15
27.7/19 + 12/19 × 5/6
28.1/4 + 3/4 ÷ 2/3
29.8/7 × 21/16 + 1/2
30.101 × 1/5 – 1/5 × 21
31.[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)
32.5+21*8/2-6-59
33.68/21-8-11*8+61
34.-2/9-7/9-56
35.4.6-(-3/4+1.6-4-3/4)
36.1/2+3+5/6-7/12
37.[2/3-4-1/4*(-0.4)]/1/3+2
38.22+(-4)+(-2)+4*3
39.-2*8-8*1/2+8/1/8
40.(2/3+1/2)/(-1/12)*(-12)